Jessica Oster, Vanderbilt University (IMAGE) Vanderbilt University Caption This is Jessica Oster at the entrance of a Tennessee cave that she has begun studying. Credit Zachary Eagles, Vanderbilt University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.